ToggleEvent: newState property

Baseline 2024

Newly available

Since April 2024, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.

The newState read-only property of the ToggleEvent interface is a string representing the state the element is transitioning to.

Value

A string. Possible values are "open" (the popover is being shown) or "closed" (the popover is being hidden).

Examples

js

const popover = document.getElementById("mypopover");

// ...

popover.addEventListener("beforetoggle", (event) => {
  if (event.newState === "open") {
    console.log("Popover is being shown");
  } else {
    console.log("Popover is being hidden");
  }
});

Specifications

Specification
HTML Standard # dom-toggleevent-newstate

Browser compatibility

BCD tables only load in the browser

See also

Popover API